vidar | 59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8

Analysis

max time kernel
104s
max time network
106s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
24-07-2022 05:11

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General

Target

59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
Size

3.6MB
MD5

852f308c246c8ee3149ec7414c6fea7f
SHA1

49cef2f0d76a122d464324b4b73bf255212548d7
SHA256

59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8
SHA512

3dcef726e29576602f755ba7b98caea9c2f03f5b801d1bb0177d4d412eab8cc6958ec55d7ce8083f8c7f6fc2edc2028c5d0615c48ac90e89ac71f858de5c88b8

Score

10^/10

vidar 231 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

9.5

Botnet

231

http://bestpolandhotels.com/

Attributes

profile_id
231

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1924-67-0x0000000000400000-0x00000000008B1000-memory.dmp	family_vidar
behavioral1/memory/1924-84-0x0000000000400000-0x00000000008B1000-memory.dmp	family_vidar

Executes dropped EXE 2 IoCs

Processes:

busshost.exeYTLoader.exe

pid process

1924 busshost.exe
952 YTLoader.exe

pid	process
1924	busshost.exe
952	YTLoader.exe

Loads dropped DLL 8 IoCs

Processes:

59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exeWerFault.exe

pid	process
1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe
1612	WerFault.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

7 ip-api.com

flow	ioc
7	ip-api.com

Drops file in Program Files directory 4 IoCs

Processes:

59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\LetsSee!\YTLoader.exe	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\busshost.exe	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
File opened for modification	C:\Program Files (x86)\LetsSee!\Uninstall.exe	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
File created	C:\Program Files (x86)\LetsSee!\Uninstall.ini	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1612 952 WerFault.exe YTLoader.exe

pid	pid_target	process	target process
1612	952	WerFault.exe	YTLoader.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

busshost.exeYTLoader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	busshost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	busshost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	YTLoader.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

YTLoader.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	YTLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	YTLoader.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

busshost.exe

pid process

1924 busshost.exe
1924 busshost.exe
1924 busshost.exe
1924 busshost.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

YTLoader.exe

description pid process

Token: SeDebugPrivilege 952 YTLoader.exe

pid	process
1924	busshost.exe
1924	busshost.exe
1924	busshost.exe
1924	busshost.exe

description	pid	process
Token: SeDebugPrivilege	952	YTLoader.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exeYTLoader.exe

description	pid	process	target process
PID 1956 wrote to memory of 1924	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	busshost.exe
PID 1956 wrote to memory of 1924	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	busshost.exe
PID 1956 wrote to memory of 1924	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	busshost.exe
PID 1956 wrote to memory of 1924	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	busshost.exe
PID 1956 wrote to memory of 952	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	YTLoader.exe
PID 1956 wrote to memory of 952	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	YTLoader.exe
PID 1956 wrote to memory of 952	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	YTLoader.exe
PID 1956 wrote to memory of 952	1956	59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe	YTLoader.exe
PID 952 wrote to memory of 1612	952	YTLoader.exe	WerFault.exe
PID 952 wrote to memory of 1612	952	YTLoader.exe	WerFault.exe
PID 952 wrote to memory of 1612	952	YTLoader.exe	WerFault.exe
PID 952 wrote to memory of 1612	952	YTLoader.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe
"C:\Users\Admin\AppData\Local\Temp\59274c6c2cddb575e155880d50990fb75a66204af22a24e6f798febb30c409c8.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1956

C:\Program Files (x86)\LetsSee!\busshost.exe
"C:\Program Files (x86)\LetsSee!\busshost.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1924

C:\Program Files (x86)\LetsSee!\YTLoader.exe
"C:\Program Files (x86)\LetsSee!\YTLoader.exe"
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 952 -s 1180
3⤵
- Loads dropped DLL
- Program crash
PID:1612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
C:\Program Files (x86)\LetsSee!\busshost.exe
Filesize
647KB

MD5
d8f872b975a781c179e616844b8fcda6

SHA1
c90a9d46dbb216cacb3c6de9f884a1707dd16ff3

SHA256
f3005949682460d4095237758b8756bb323131bc49df4a9e1230201cf1894be1

SHA512
9a71f22b785ccdabefcb18127a543108fdb223e9c3837d68be9816c6d6ab03019f4d126695950bf7e65bf041c2f499918873a01b28da6a5f866b07e90773cbaf

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\YTLoader.exe
Filesize
3.0MB

MD5
adc9db2753fa3daa6a8156254ba2a5f1

SHA1
50ff27e2e1c4acc35768b93b73c03f7630027f04

SHA256
f8cc40321301d39f03eaa48d42cbbb2e953b694dc13ccf9d986032c621223fde

SHA512
5f7fca8da622035f3a83e562d727ccdd842d623ec376f93c75c3218bddd970c34a9efc66a33cfd6e52a398fa2ed090b890d05aecef53f65a22917d50d31a1195

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
647KB

MD5
d8f872b975a781c179e616844b8fcda6

SHA1
c90a9d46dbb216cacb3c6de9f884a1707dd16ff3

SHA256
f3005949682460d4095237758b8756bb323131bc49df4a9e1230201cf1894be1

SHA512
9a71f22b785ccdabefcb18127a543108fdb223e9c3837d68be9816c6d6ab03019f4d126695950bf7e65bf041c2f499918873a01b28da6a5f866b07e90773cbaf

Download Submit
\Program Files (x86)\LetsSee!\busshost.exe
Filesize
647KB

MD5
d8f872b975a781c179e616844b8fcda6

SHA1
c90a9d46dbb216cacb3c6de9f884a1707dd16ff3

SHA256
f3005949682460d4095237758b8756bb323131bc49df4a9e1230201cf1894be1

SHA512
9a71f22b785ccdabefcb18127a543108fdb223e9c3837d68be9816c6d6ab03019f4d126695950bf7e65bf041c2f499918873a01b28da6a5f866b07e90773cbaf

Download Submit
memory/952-73-0x0000000000650000-0x000000000065A000-memory.dmp

Filesize
40KB

Download
memory/952-79-0x0000000000740000-0x0000000000748000-memory.dmp

Filesize
32KB

Download
memory/952-70-0x0000000005240000-0x000000000569A000-memory.dmp

Filesize
4.4MB

Download
memory/952-71-0x0000000000320000-0x0000000000330000-memory.dmp

Filesize
64KB

Download
memory/952-72-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/952-60-0x0000000000000000-mapping.dmp

Download
memory/952-74-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download
memory/952-75-0x0000000000680000-0x0000000000688000-memory.dmp

Filesize
32KB

Download
memory/952-76-0x00000000006D0000-0x00000000006DE000-memory.dmp

Filesize
56KB

Download
memory/952-77-0x0000000000720000-0x0000000000728000-memory.dmp

Filesize
32KB

Download
memory/952-78-0x0000000000730000-0x0000000000738000-memory.dmp

Filesize
32KB

Download
memory/952-68-0x00000000001E0000-0x00000000001EA000-memory.dmp

Filesize
40KB

Download
memory/952-80-0x00000000007D0000-0x00000000007D8000-memory.dmp

Filesize
32KB

Download
memory/952-81-0x0000000000830000-0x0000000000838000-memory.dmp

Filesize
32KB

Download
memory/952-82-0x00000000008C0000-0x00000000008C8000-memory.dmp

Filesize
32KB

Download
memory/952-65-0x0000000000330000-0x0000000000638000-memory.dmp

Filesize
3.0MB

Download
memory/1612-85-0x0000000000000000-mapping.dmp

Download
memory/1924-84-0x0000000000400000-0x00000000008B1000-memory.dmp

Filesize
4.7MB

Download
memory/1924-67-0x0000000000400000-0x00000000008B1000-memory.dmp

Filesize
4.7MB

Download
memory/1924-66-0x0000000000260000-0x0000000000360000-memory.dmp

Filesize
1024KB

Download
memory/1924-83-0x0000000000260000-0x0000000000360000-memory.dmp

Filesize
1024KB

Download
memory/1924-57-0x0000000000000000-mapping.dmp

Download
memory/1956-54-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download